$font-size: 14vw;

:root {
    box-sizing: border-box;
}

::before,
::after {
    box-sizing: inherit;
}

html body {
    font-family: 'Segoe UI', Arial, 'Microsoft Yahei', sans-serif;
    font-size: calc(100vw / $font-size / 1920);
    margin: 0;
    /* 移除页面的默认边距 */
    height: 100vh;
    max-width: 100%;
    padding: 0;
    // box-sizing: border-box;
}